Add text markup, shapes, watermarks, and comments to Word documents.

Annotate Word Documents with C#

Add and manage annotations in Microsoft Word documents programmatically — no Office installation required.

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How to Annotate a Word Document in C#

GroupDocs.Annotation for .NET makes it easy to annotate Word documents:

Open the Word document with an Annotator instance.
Create and configure the annotation you need.
Add the annotation to the document.
Save the annotated Word document.

Sample annotations Copy

// Annotate a Word document

// Open the document with an Annotator instance
using (Annotator annotator = new Annotator("input.docx"))
{
    // Create an area annotation
    AreaAnnotation area = new AreaAnnotation
    {
        Box = new Rectangle(100, 100, 200, 80),
        BackgroundColor = 65535,
        PageNumber = 0,
        Message = "Important"
    };

    // Add the annotation
    annotator.Add(area);

    // Save the annotated document
    annotator.Save("annotated.docx");
}

dotnet add package GroupDocs.Annotation

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Full Control Over Word Annotations

Add every annotation type to Word documents and manage them with a simple API.

Text Markup

Highlight, underline, strike out, or replace text in Word documents.

Shapes & Watermarks

Draw shapes and stamp watermarks or images onto Word pages.

Manage Annotations

Get, remove, import, and export Word annotations.

Read Word Annotations

Retrieve the annotations stored in an annotated Word document:

C#

Download result Copy

//  Open the annotated document
using (Annotator annotator = new Annotator("annotated.docx"))
{
    // Get all annotations
    List<AnnotationBase> annotations = annotator.Get();

    // Inspect each annotation
    foreach (AnnotationBase annotation in annotations)
    {
        System.Console.WriteLine(annotation.Message);
    }

    // Save the document
    annotator.Save("output.docx");
}

dotnet add package GroupDocs.Annotation

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Annotate Word Files

GroupDocs.Annotation for .NET lets you add, edit, and remove annotations in Microsoft Word documents. Highlight or strike out text, draw shapes, stamp watermarks and images, and attach threaded comments — then save the result in the original Word format.

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